The geography of Greece was surrounded by ocean water to protect them from foreign invaders and allowed them to trade by sea. They were able to flourish as they expanded North.
The 50 could be interpreted as 50% or 50 out of an unknown point value. With the given information, the reader doesn't know how the subject did on the test. It can be assumed that the subject did not do equally well in each course since the 50 in psychology could be 50/50 and the 50 in chemistry could be 50/100. With more information, the reader might be able to come to a clearer answer
A risk pool is one of the forms of risk management mostly practiced by insurance companies. Under this system, insurance companies come together to form a pool, which can provide protection to insurance companies against catastrophic risks such as floods or earthquakes.
Explanation:
Probably should do it maybe daily